body {
  font-size: .875rem;
}

.feather {
  width: 16px;
  height: 16px;
  vertical-align: text-bottom;
}

/*
 * Sidebar
 */

.sidebar {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100; /* Behind the navbar */
  padding: 0;
  background-color: #d8ebd8;  /*用户名--小框*/
  box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
}

.sidebar-sticky {
  position: -webkit-sticky;
  position: sticky;
  top: 48px; /* Height of navbar */
  height: calc(100vh - 48px);
  padding-top: .5rem;
  overflow-x: hidden;
  overflow-y: auto; /* Scrollable contents if viewport is shorter than content. */
}
/*管理学生-老师-班级的字样颜色*/
.sidebar .nav-link {
  font-weight: 500;
  color: #292828;
}
/*图标颜色*/
.sidebar .nav-link .feather {
  margin-right: 4px;
  color: #b93d3d;
}

/*点击选项的颜色*/
.sidebar .nav-link.active {
  color: #3f7a9b;
}

.sidebar .nav-link:hover .feather,
.sidebar .nav-link.active .feather {
  color: inherit;
}

.sidebar-heading {
  font-size: .75rem;
  text-transform: uppercase;
}

/*
 * Navbar
 */

/*顶部框*/
.navbar{
  background-color: #ebeaea;
}
.navbar-brand {
  padding-top: .75rem;
  padding-bottom: .75rem;
  font-size: 1rem;
  color: #e8e5e5;
  background-color: #426374;  /*用户名--小框*/
  box-shadow: inset -1px 0 0 rgb(58, 120, 155);
}
.navbar-nav{
  background-color: #ebeaea; /*退出登录--小框*/
}
.nav-link{
  color: #292828;
}
.navbar .form-control {
  padding: .75rem 1rem;
  border-width: 0;
  border-radius: 0;
}


.border-top { border-top: 1px solid #e5e5e5; }
.border-bottom { border-bottom: 1px solid #e5e5e5; }
